Spam Filtering

I received a notification that an email attachment was removed by Proofpoint. What do I do now?

HUIT has implemented TAP Attachment Defense from Proofpoint on our Office 365 email system. The TAP system detects an email that contains a malicious attachment and strips the attachment to prevent phishing and targeted malware attacks. If you receive an email containing an infected attachment, Proofpoint will filter out the email to protect your account from being compromised. If you know who sent the stripped attachment, let the sender know that a malicious attachment has been propagated from their email address. Do not accept any shared files from that sender until you confirm...

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Why am I getting an error message when I try to release a message from my digest?

When you click on “Release” or “Release and Allow Sender” in your email digest, you may see an error message that the "Message no longer available". 

There can be multiple reasons for this: 

  1. You've already selected “Release” or “Release and Allow Sender” from your End User Digest. It may take up to...
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Can I get more than one digest a day or decide what times/days to receive them?

For now, Daily Digest delivery schedules can only be set at the global level. We've asked Proofpoint to add self-scheduling functionality for you and will keep you posted on any developments.

In the meantime, you can always see an up to date list of all your quarantined email by logging on to your Web Console or by clicking the "Request Summary Digest" link in a previous End User Digest.

What does the "Release" link in my Digest do?

When you choose to "Release" a message, it is delivered to your inbox and diagnostic information about the message is sent to Proofpoint to help train the system not to stop such messages going forward.